MASIMO CORP

CUSIP: 57479510 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

Note: Option positions (PUT/CALL) are excluded.

Q3 2016
Shares 574,265 Value ($000) $34,163 Avg Close — Range —
Q2 2016
Shares 301,571 Value ($000) $15,837 Avg Close — Range —
Q1 2016
Shares 219,829 Value ($000) $9,198 Avg Close — Range —
Q4 2015
Shares 288,228 Value ($000) $11,964 Avg Close — Range —
Q3 2015
Shares 107,962 Value ($000) $4,182 Avg Close — Range —
Q2 2015
Shares 107,962 Value ($000) $4,182 Avg Close — Range —
Q3 2014
Shares 128,089 Value ($000) $2,726 Avg Close — Range —
Q2 2014
Shares 331,568 Value ($000) $7,825 Avg Close — Range —
Q1 2014
Shares 151,340 Value ($000) $4,133 Avg Close — Range —